On 05/09/2012 11:41 AM, Gleb Natapov wrote: > > > > > void vfree(void *mem) > > > { > > > unsigned long size = ((unsigned long *)mem)[-1]; > > > diff --git a/lib/x86/vm.h b/lib/x86/vm.h > > > index 71ab4a8..ff4842f 100644 > > > --- a/lib/x86/vm.h > > > +++ b/lib/x86/vm.h > > > @@ -22,6 +22,7 @@ void vfree(void *mem); > > > void *vmap(unsigned long long phys, unsigned long size); > > > void *alloc_vpage(void); > > > void *alloc_vpages(ulong nr); > > > +unsigned long virt_to_phys_cr3(void *mem); > > > > uint64_t. > virt_to_phys() also unsigned long. And get_pte() that virt_to_phys_cr3() > uses also. I guess the code is not ready for more then 2^32 memory in > 32bit VM. It's certainly not enterprise quality yet. But let's not add more problems. > > Alterative ways of doing this: > > - file-backed memory using FUSE to control paging > Not sure how that can be done. > > > - add madvise(MADV_DONTNEED) support to testdev, and have the guest > > trigger page-in itself. > MADV_DONTNEED will drop page, not swap it out. Right, but it will be have to be reloaded from disk (it has to be file-backed for this to work). If it's dirty, sync it first. -- error compiling committee.c: too many arguments to function -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html